Stop-motion for circular-knitting machines.



` E" G. KLINGLER. STOP www ron cumulus Kmrrmc MACHINES. APPLWHIQM FILED AU6.24. |918.

Paul (2K/ingle?- Wlfneasi. W15@ l 'eolreponding parts in all PATENT OFFICE.

PAUL C. KLINGLER, OF TRENTON, NEW JERSEY.

STOP-MOTION FOB, CIRCULAR-XNITTING MACHINES.

To all whom t may concern:

Be it know'n that I, PAUL C. KmNoLER, a citizen of United States, residing at 146 Randall avenue, Trenton, in the county of Mercer and State of New Jersey, have invented new and useful Improvements in- Stop-Motions for CircularKnitting Machines, of which the following is a specication..

The invention relates to knitting machines and more particularly to the stop motion of tion be called to the machine.

Among other features, the invention comprehcnds a stop motion for a knitting machine, in which the operation of the machine will be brought to a sto upon .thelbrealc ing of the head of a need e, when a stocking or the goods being manufactured on the ma'- chine is pressed oli', or in the event that a stocking is being made, when the heel or toe is cast olf, the stop motion being so arranged that it will work on the forward or reverse stroke of the machine, and also stop the machine in the event that one of the sinkers breaks or becomes dislodged, the stoppin of the machine being accomplished throng the medium of suitable mechanism,- which is actuated to move the belt of driving elementA the driven pulley to the loose or idling' u ey. p In the further disclosure of the invention, reference is to be had to the accompanying drawings, constituting a part of'this specicatioiuin which similar characters denote the views, and inl w 1c Figure l is a fragmentary side elevation of a knitting machine showing `my device applied thereto.

I1`ig. 2 is a fra mentary enlar view throught e frame of t e showing the normal position of sinkers, and the prime rod.

Fig. V3 is a fragmentary plan view of the structure shown 1n ig. 2 with the rod left out. v Fig. 4 is a fragmentary enlar longitudinal Sectional view ta the rod and support.

sectional machine, one of the moving element or ed sectional en through Specioation of Letters Patent. Application led April 24, 1918.

Patented Jan. 28, 1919. serial No. 230,529.

Fig. 5 is an shown in Fig.

Fig. 6 is on the line the arrow.

F ig. 7 is a vertical sectional View taken on the line 7-7 in Fig. G.

Fig. 8 is 4a fragmentary sectional View taken on the line 8--8, in Fig. 1, and

Fig. 9 is a fragmentary plan View of the structure shown in Fig. 8.

eferring more. particularly to the views,

10 indicates a knitting machine in its en tirety, which is arranged to repose on a suitable frame l1 and includes the usual drum .12, one ofthe needles 13 thereof being shown projected from the upper end of the drum, and which position the needle will assume when it is broken. the driven shaft of the machine being indicated by the numerel 14, with the usual driven pulley 15 and idler pulley 1. A belt 1.7 is shown passing around one of the pulleys, namely, the driven pulley be understood that the pulley has connection with a suitable driving element, whereby the machine will be operated. Mounted to slide in a bearing 18 secured to the frame, is a stern or shaft 19 carrying a pulley-operating 85 element 20, formed with a head 21 from which project a plurality of fingers 22 which straddle the belt 1,7, so that when the pulleyactuating element is moved, it will Aremove the belt 17 from the pulley 15 on to the idler 90 pulley 1 6, and vice versa, as the ease may be.

A. tubular support 23 is suitably secured to the frame 11, and mounted to turn therein Vis an upstanding'shaft 24, the upper end of which carries a rod support 25 for a rod 26, 06 the 'rod 26Ybeing horizontally arranged to project from a pivoted portion 27 of the support, and extending into the path of the broken needle 13 of the drum 12, so that as the drum rotates the broken needle will limpart a horizontal turning movement to the rod 26, and by providing a connecting spring 28, the shaft 24 will of course be subjected to a torsional action. The pivotcd portion 27 for supporting the rod 26, is provided in order that the rod can be swung into a position out of the plane of .th'e drum when desired, and by having inclined abuttin ffl/cess` 29, the rod 26 will .normally be belg from moving downwardly beyond its normal horiz"onta1 plane.

The tubular support 23 depends below the end elevation of the structure a'horizontal sectional view taken 6-G looking in the direction of 50 15, and it will of course 80 ing main part of the frame 11 and secured thereto is a sup orting disk 30, on the under side of whic is mounted to slide a plate 31 having a segmental opening 32 therein, an in' which se mental opening is arranged to lie a semi-el iptical actuator 33 keyed to the shaft 24. An extension 34 of the plate 31 has pivotal connection with a stud 35,' the lower part of which forms a coupling 36 for securing one end of a rod 4ably term a latch rod or bar, and w ich at its free end is formed with a notched portion 38, a suitable contractile spring 39 beconnected to the stud'35 and to a` housing 40 on the frame of' the machine, so as to normally exert a pull on the late 31 and hold the iat side of the semi-e liptical actuator 33 against the Hat face of the plate formed by the segmental opening 32. The notched portion 38 of the latch'bar 37 pgjects through one of the plurality of op ings 41 in the housin 40, and en ages a U shaped end 42 of abar 43 whic extends outwardly from the housing, and at its free end carries a head 44, a suitable expansible helical spring 45 being arranged to encircle the bar 43, with one end abutting against the head 44, and one end abutting against the housing 40. A second housing 46 secured to the frame, and formin in fact a art of 'the housing 40, is provi ed with a ongitudinal slot 47 in which is arranged to slide the end of an operating bar 48, which normally projects into a notched portion 49 in the housing, said notched portion forming a continuation of the slot 47, a suitable fiat spring -50 being arranged to normali bear against the free end of the .operating han 48 to hold the same in the notched ortion 49, and at which point the head 44 o the rod 43 will be in juxtaposition to the free end of the o erating bar 48, as shown in Figs. 8 and 9. he operating bar 48 is mounted to slide in a suitable bearing 51 on the frame, and a collar 52 is secured on the operating bar, with an expansiblehelical s ring' 53 encircling the operating bar'and ii abutting against the bearing 51, and the other end abutting against and .connected to the collar 52, so as to impart a movement to the bar 48 in the direction of the indil cated? arrow, which will be hereinafter more causing the other end of the operating ar 48, connected to the belt-actuator 20, to move said belt-actuator, and thus through the medium of the fingers 22v `uide the belt 17 from the 4pulley 15 to thei ler pulley 16.

Now assuming that thedevice is in the position shown in Fig. 1, and that either through the breaking of a needle head, such as the needle head 13, or the dislodgment or breakin of a sinker, such as the smker 54, shown- 1n Fi 2, the needle or sinker is moved into t c path of the horizontal rod 37, which I refer-V -of the rod to slide the same aving one nd- .cause the part brought into t'he 26, and it'will be clear that a turning movement will be imparted to the rod in the continued rotation of the machine, and that thus the shaft 24 will be rotated, as has been described heretofore. This, it will be seen by referrin to Fi 1 and 6, will operate the semi-e li tica actuator 33, causing its flat face to ear against the flat face of the plate 31 and thereby slide the plate 31 on the disk 30. This horizontal pull imparted to the plate 31 will of course exert a pull toward the left on the Alatch bar4 37, said pull being against thecontractile action of the spring 39, and then, as shown in Figs. 8 and 9, the notched ortion 38 of the latch bar will'be removed rom enga eme-nt with the U-shaped portion 42 of the a'r 43, thereby perlnittin the spring 45 to act, and which spring us ingon the head 44, will move the hea against the end of the bar 48 so as to move the latter against the action of the spring 50, Ibringing the free end of the bar 48 out of the notched portion 49 and into the main slot 47. At the moment the free end of the bar 48 is brought into the slot 47, it will be clear that the action of the spring 53 will impart a pull on that end in along the slot 47 to the rear end thereof, and in so doing, the other end of the bar, connected to the belt-actuator 20, will causeI the beltaetuator to be slid across from the positive or driven pulle 15 to the idler pulley 16, carrying the be t 17 with it, so that the belt will be removed to the idler pulley, and

' thus the machine will be brought to a stop.

From the foregoing description it will be seen that the operation of the mechanism of my stop motion is brought about normally by the horizontal rod 216, and that the movement ofthis rod is brought about by either the breaking of a needle head, or a sinker, or any other cause which will brin" some part of the knitting machine or mec anism thereof, into the path of the rod vv'herelb.7 the continued. rotation ofthe drum wil rod, to engage and-.actuaba theY rod and imax't a turnn disposed Ashaft and it ntu'rn will operate the semi-elliptical actuater 38 and so on, as described heretofore, belbectuator 20 will'removo the belt from they positive or driven pulleyl to the idler pulley 16. The mechanismdescribed'canof course be madevry sensitive, and` an' ade seen tlilat thle to pass t roug 41 rather than through the central opemngs, as shown, and

path of the movement to it, which will f/ ringa'bout t e rotationof the vertical-ly to the-point where the loyed, and as an that this will of course change the tension or pull npon the rod 43, the adjustment of the mechanism depending entirely upon 'the amount of eil'ort necessary to guide the belt over the driven pulley t0 the idler.

It is to he noted that the sinker ring 55, Figs. 2 and 3, is provided with a springcontrolled cam 56 over which the heel 57 of the sinkers 54 normally ride as the cylinder rotates. but in the @"ent of said heel 57 breaking oil', the sinker vill he projected to the left of Fig. i2, and cause the head 58 vthereof to actuate the rod 26, as hereinbefore explained. Furthermore, it is to he noted that I provide the rod 26 with a depending tooth 59 which will contact with the latch of the needle in the event of the heel breaking, or when a needle clogs up.

Although l have shown a particular form of my invention, it will he understood that I do not limit myself to the precise construction and description set forth; that various slight changes may he made from the disclosure without departing from the spirit of lhc invention, the scope of which is defined in the appended claims.

claim:

l. A stop motion for a knitting machine, comprising in` ifomhination with an actuator asc-:oeiatedl with a driving or driven part of the machine, of a vertically disposed rotatable shaft, a. rod-like finger supported on the shaft to he actuated hy a art of the niaehine coming into the path o the linger and engaging the same whereby to turn Said shaft, a plate, an operating element on the shaft to impart movement to said plate, a housing, a latch bar having connection with the plate to he actuated hy the movement. of the plato, said latch har normally extending into said housing, a spring-engaged rod normally held against the action of the spring h v the latch har, a movable operating bar connected to the actuatm' lo operato the same. said hai' normally being locked against movement, and a head onl the spring-engaged rod to engage the operating bar and move thisanae into unlocked position, when said spring-engaged rod is released by the movement ci' said latch har.

A stop nation for a knitting machine, comprising in combination with an actuator associated with a driving or driven part'oi the machine, of a vertically disposed rota-V talble shaft, a rod-like finger supported on the shaft to be actuated [by a part of the machine coming into the path of the finger and engaging the same whereby to turn said' movement, ahead on the spring-engaged rod' to engage the operating bar and move the same into unlocked position, when said spring-engaged rod is released by the movement of said latch bar, and means connecting said linger with the shaft, for insuring the normal holding of the finger in position to be operated to impart rotation to the shaft. A stop 'motion for a knitting machine, comprising in combination with an actuator associated with a driving or driven part of the machine, of a vertically disposed rotatable shaft, a rod-like finger supported on the shaft to he actuated by a art of the machine coming into the path ed) the finger and engaging the same whereby to turn said shaft, a plate, an operating element on thc shaft to impart movement to said plate, a housing, a latch bar having connection with the late to he actuated by the movement of tiie plate, said latch bar normally extending into said housing, a spring-engaged rod normally held against the action of the spring by the latch har, a mova'ble operating bar connected to thc actuator to operate the same, said har normally being locked against movement, a head on the s ring-engaged rod to engage the operating ar and move the same into unlocked position, when said spring-engaged rod is released by the movement of lsaid latch har, and a spring connecting said finger with the shaft, for insuring the normal holding of the finger in position to be operated to impart rotation to the shaft.

In testimony vvhcreof I affix my signature.

PAUL C. KLINGLER. 

